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From: Catalin Marinas <catalin.marinas@arm.com>
To: Punit Agrawal <punit.agrawal@arm.com>
Cc: kvmarm@lists.cs.columbia.edu, suzuki.poulose@arm.com,
marc.zyngier@arm.com, Will Deacon <will.deacon@arm.com>,
christoffer.dall@arm.com, linux-kernel@vger.kernel.org,
Russell King <linux@armlinux.org.uk>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v3 4/4] KVM: arm64: Add support for PUD hugepages at stage 2
Date: Tue, 15 May 2018 18:22:01 +0100 [thread overview]
Message-ID: <20180515172200.hw24lgd6qh436xvy@armageddon.cambridge.arm.com> (raw)
In-Reply-To: <20180514144304.10484-5-punit.agrawal@arm.com>
On Mon, May 14, 2018 at 03:43:04PM +0100, Punit Agrawal wrote:
> KVM only supports PMD hugepages at stage 2. Extend the stage 2 fault
> handling to add support for PUD hugepages.
>
> Addition of pud hugepage support enables additional hugepage
> sizes (e.g., 1G with 4K granule) which can be useful on cores that
> support mapping larger block sizes in the TLB entries.
>
> Signed-off-by: Punit Agrawal <punit.agrawal@arm.com>
> Reviewed-by: Christoffer Dall <christoffer.dall@arm.com>
> Cc: Marc Zyngier <marc.zyngier@arm.com>
> Cc: Russell King <linux@armlinux.org.uk>
> Cc: Catalin Marinas <catalin.marinas@arm.com>
> Cc: Will Deacon <will.deacon@arm.com>
> ---
> arch/arm/include/asm/kvm_mmu.h | 19 ++++++++++++
> arch/arm64/include/asm/kvm_mmu.h | 15 ++++++++++
> arch/arm64/include/asm/pgtable-hwdef.h | 4 +++
> arch/arm64/include/asm/pgtable.h | 2 ++
> virt/kvm/arm/mmu.c | 40 ++++++++++++++++++++++++--
> 5 files changed, 77 insertions(+), 3 deletions(-)
It looks like I acked an earlier version. I'll ack it again here:
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
next prev parent reply other threads:[~2018-05-15 17:22 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-14 14:43 [PATCH v3 0/4] KVM: Support " Punit Agrawal
2018-05-14 14:43 ` [PATCH v3 1/4] KVM: arm/arm64: Share common code in user_mem_abort() Punit Agrawal
2018-05-14 14:43 ` [PATCH v3 2/4] KVM: arm/arm64: Introduce helpers to manupulate page table entries Punit Agrawal
2018-05-14 14:43 ` [PATCH v3 3/4] KVM: arm64: Support dirty page tracking for PUD hugepages Punit Agrawal
2018-05-14 14:43 ` [PATCH v3 4/4] KVM: arm64: Add support for PUD hugepages at stage 2 Punit Agrawal
2018-05-15 17:22 ` Catalin Marinas [this message]
2018-05-15 22:19 ` Suzuki K Poulose
2018-05-16 11:08 ` Punit Agrawal
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